Across the corridor from the apse decorated with spirals is this ornate room. (To see a full panoramic of it, take a look at the top of this page.) Beneath the trilithon / porthole niche, an altar has had a chunk cutout of it to create a cubbyhole with a plug. When archaeologists pulled out the plug, they found a collection of burnt sheep and ox bones, marine shells, bits of pottery, a long bone spatula, thirteen flint flakes, and a 4.5-inch-long flint knife (11.4 cm). Yep, animal sacrifice seems to have been likely here.